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首页> 外文期刊>International Journal of Minerals,Metallurgy and Materials >Preparation and visible-light photocatalytic property of nanostructu- red Fe-doped TiO_2 from titanium containing electric furnace molten slag
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Preparation and visible-light photocatalytic property of nanostructu- red Fe-doped TiO_2 from titanium containing electric furnace molten slag

机译：含钛电炉熔渣制备纳米结构Fe掺杂TiO_2的制备及其可见光催化性能

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摘要

Nanostractured Fe-doped titanium dioxide was synthesized from titanium containing electric furnace molten slag (TCEFMS) by using an alkali fusion, followed by a hydrolyzation-acidolysis-calcination route. The effects of alkali/slag mass ratio, calcinating temperature, calcinating time, and water/slag mass ratio on the extraction efficiency and purity of products were systematically studied in this paper. It is indicated that the best extraction efficiency of nanostructured Fe-doped titanium dioxide is 99.35%, when the molten slag is calcinated at 700° C for 1 h with the mass ratio of alkali/molten slag of 1.5:1. The influence of alkali/slag mass ratio on the photocatalytic activity of final products was evaluated by the photodegradation of methyl blue under visible light irradiation. A maximum photodegradation efficiency of 88.12% over 30 min was achieved under the optimum conditions.
机译：通过碱熔法由含钛电炉熔渣（TCEFMS）合成纳米分散的掺铁二氧化钛，然后进行水解-酸解-煅烧路线。本文系统地研究了碱渣质量比，煅烧温度，煅烧时间，水渣质量比对产物提取效率和纯度的影响。结果表明，在碱渣/熔融渣的质量比为1.5：1的条件下，将熔融渣在700℃下煅烧1h时，纳米Fe掺杂二氧化钛的最佳提取率为99.35％。碱/矿渣质量比对最终产品光催化活性的影响通过在可见光照射下甲基蓝的光降解来评估。在最佳条件下，在30分钟内可达到88.12％的最大光降解效率。

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